Centrifuge chamber door with automatic adsorption door lock design, can be closed with a single finger. Precooling, the compressor will automatically start cooling as long as the set temperature is lower than the ambient temperature. Sound indicator to prompt that the upper cover is closed to maintain the temperature inside the chamber, after centrifugation. Advanced R290 fluorine free refrigerant, low carbon and environmental protection. Maximum rotation speed can be achieved even at 4. Up to 9 program storage capacity according to experimental needs. Biosafety rotor, three-layer seal for biosafety High-strength aluminum alloy, three layered biosafety to withstand numerous high temperature and high pressure sterilizations. Five rotors with 0.2mL, 0.5mL, 1.5mL, 2mL and 5mL centrifuge tubes/ PCR tubes capacity. An external condensation tank prevents condensate within the centrifuge chamber.